Antifriction bearing



March 1s, 1930. w. AJGEIGER -1,750,797'

" ANTIFRIcT-ION BEARING Filed Feb. 5, 1926 7 #a /1 l fm/ :lim

\ mm i W.; K Willian-1464921 Patentes Mar. 1s, 193e i Nusura sewers` WILLIAM A. Guiana, or CHICAGO, rnninors, Assi-anon To w. n. Minna, rnc., on cnrcAGo, rumors, A conronAfrroN or DELAWARE ANTIFRIICTGN' BEARING Application filed February Thisv invention relates to anti-friction bearings. l y

l One object of the invention is to provide a simple, practical and efficient anti-friction bearing, especially adapted for railway car side bearings, in. which the parts are so arranged that the anti-friction elements are automatically returned to normal centered position when free from load.

A more particular object of the invention is to provide a bearing of the above character, including a boxlike retainer with antifriction4 elements disposed therein, together with vertically arranged' helical springs at i5 outer sides vof said retainer, transmitting members removably-connected to said antifriction elements and engaging said springs, whereby movementV of the anti-friction elements to either side of central position efy 2o fects flexing-of said springs intermediate their ends, whichoperate'to'return the element to,\and maintain the same in vcentral position when free from load, said springs servingto resiliently maintain the transmitting elements in engagement with the antifriction elements, which in turn are held against removal Vfrom the housing bysaid transmitting elements.l

A still further'object of the invention is to provide a bearingfof the character above referred to, in'whichl a covering cap 'is utilized which bears upon the anti-friction elements,lthe bearing surfaces ofsaid cap and of the retainer being arranged on parallel y arcs whereby movement of the anti-friction elements to either side. of .central 'position does not cause elevation ofv said cap, and the curved bearing surfaces of the retainer have `an eEectl in returning the anti-friction eley ments and cap to central. position.

Other and further objects of the invention will more'clearly appear from the description and claims hereinafter following In the drawing, forming a part of this .45 specification, Fig. l'. is a vertical sectional view taken through the ends of the body and truck holsters of Aa railway car, showingmy improvements linconnectiontherewith. vFig. 2 ris atransv'erse sectionalkview, partly broken away, corresponding substantially'tothe line Serial No. 86,171.

' 2,-2 ofFig. l. Fig. 3 is avdetailed' top plan view'of one of the transmitting and spacing members usedV in connection with the invention.` Fig.V 4t is a side elevational view of a modified form of the invention.v And Fig. 5 is a transverse sectionalvie'w 'corresponding substantially to the line 5'-5'of Fig. 4.

Referring first toFigs. l to k3. of the drawings, 10 denotes the underside of the body bolster, and 11 the upper side of the corresponding opposed truck bolster. `The improved side bearing is shown as applied to the truck bolster vand comprises broadly a mounting, retainer, or housing A, .anti-fric-` V tion means B-B, transmitting. elements C-C resilient` elements Dy-D and a' cap The housing or retainer AV asU showntis of rectangular formation havingvertically disposed` side walls 20e-20, and vertically Tdisposed end walls ill-2l.' rlhe bottomQQ of said housing includes a pair kof longitudinally curved seats 23-23, upon each of which is mounted a concavebearing plate 24, the

outer ends ofV said bearingplates abutting the end walls 21-21, and theinner endsV of 'said plates beingdisposed inf abutting'relm" p tion. The side walls 20-20 are eachprovided with an elongated,horizontallyl disposed guide" slot 25 to Vacconnnodate the transmitting members C-C'hereinafter described. The retainer A isv provided atits opposite ends with securingV flanges 2%;26 y through which entendi-rivetsl 27--27' which ,secure the retainer to the truck bolster.

' The anti-friction elements B-B- are two in number, one of the same Vbeing disposed uponY each of the curved; bearing'plat'es 1 v 2li-24a The anti-friction elements are Vsimilarin construction, in this vinstance being in the' form of rollers each lof whicliis 'providedl withl cylindrieal'sockets or recessesV 28-28 4in its opposite ends, Vtherupper periphery of each roller B being providedwith teeth or ribs v29 the cap E. n /The cap E is preferably rectangular jin form, the topSO ofwhich is flan-and the under surface 'of which is provided-with 'are-` uatebearing faces S14-3l, 'which are vstruck adapted yto co-operatey with upon arcs adaptedto extendin siibst'antially of 'the undersurface ofthe cap having a depending projection 32, the oppositersides ojwhich are rounded asV indicatedfat Bto provide stops for limiting movement of the Acap longitudinally;V Eachbearingsurface 3l, provided Withl a Vplnralityfof transversely'.

with the' rvteeth 29 on'fthe anti-.friction element B- Bi- Thecap'is seenred to the lions;-

ing A by meaasgqf nanny extendingiedges {n35-35 extending'lalong its side acesradjaf position shownl iii/dotted lines lig. to 'j the'positionshown in full lines in saidfignre, t V,the lugs serving "to maintain the cap `against 'Yertical enclwiseremovahVA Y *.{Theitmnsmaing 'sans 'Cao are we in Y nnmber,one-beifng` disposed upon each side Y .ofthe lhonsing.- f 'foi' said' transmitting Vncieans isinV vthe"form'joic an elongated link 37 Vprovided UWith i-ntn'rnedcylindrical portions BS-BSj at V its oppositefends, one ofy the cylindrical portions SSfbeing disposed in the socketQS of each of the antigi'riction elements- VI BTB; Y the portion V37 eithetransmitting; Y member being arran'ged'inthe horizontal slot ".25 in the adjacent side rWall ofthe-housing".

r- Each of `vthe transmitting members C l`is Y profvided `With a centrally'y disposed lateralV pro-V Av`j'ection 39, Whichfhas'a oentralopeningirlO I v'extending 'theretlirougln the Walls il Vof 4said opening tapering infopposite direction.

housing A Each offsaid meanslcomprises a helical spring, which extends V through openinglO inthe projeetionrSQ of the trans-' Y in Fig. L Each? of the' side'lyra'llsOe'O isf;

, f spring being se'curedf'to a lug 4lji'ormedat the lower portion:` of the; sidewall [of the housing;

- and thel opposite endgof said spring being sef i cured to the lug 442 secured adj acent the top Vedge of thefhousingythe arrangement' being Y `ftransmitting; element engages the springe ata point intermediate its ends as A clearlyshown Vinthe'drarvings--r- V., Inioperation upon relative "movement of @the body and truck holsters' so asf to, place j kthe "anti-frictiorr'bearing'nnder load, ,the cap VWill move to f either side of 'central positioni depending u pon the directionY OtmOVement:V

ofv the holsters', saidcapjbearing V1Liponv the of Aaf rollerWhi ch looselyfits between the vside Walls5O'-`50"o the housing andisadapted V 'to move longitudinally With'reference'to said h onsingfinvrolfling engagementvwiththefbear-i "fingplate 55. roller'isprovidedivithair a'iial boref 5f? adaptedftoaCC'QmmOdate the thereonbj the vspringsrewill return the roll-ir ers toward central position, Vand by reason orang-agement of theta-ah" 29 with' thfeteeth/ 34 'ofthe' bearing surfaces of the cap,` said cap Y will be returned With the rollers tolitsinitial centralposition.V l

Eyl'the above Vdescribed arrangement it f 'will be appreciated that the rollers'B-B are. positively;y held L in Yspaced relation by; .the

transmitting `members Wl1ichf[also ;-'serve to Ymaintain the saine in' central position when 'free fromload, .thet'oothv and irael? conneof tion with the cap E also maintaining the cap 2in central position. If itv is desired to (lisl assemble the bearing for anyreason the-cap' y"E may be first yremoved byfben'ding'the lugs 36 to permit suchremoval, and the rollers maybe readily removedy from theihousing by flexing the springs D-D'transverse'ly so that f -the trunnions 38,-38 of{, the 'transmitting members Vmay be disconnected `from fthe springs.v In assembling vthe "device the ftrunj-` a l -nionsSS-'LSS ofthe transmitting 1nembers Yl` inV thefrollera and the-cap Eagainfsecured in position;

Referring, Home rigs, ,iaafsgfaSlightly nistrations ortheinvenaenlsinmensa: f

lnthiseonstrction 'thehousingAeoinpris-Y posed sidewallsl 50- 50 andendwalls iol-4.51,. secnringlugs 5252beingprovided, thronghV whichjareextendedrivetsfofwhieh see Y cure the housing or retainer'Af tothe truck:v bolster.' EachY end WallllV is'l` provi'ded 1 The resilient VmeansD,-'Dfare two llllll yber' and disposedup'on .opposite "sides'n the with acnrved abutmentfo Which forms'fa The; antifriction transmitting meinbers'C-Gf The transmitting 'members :C- are 5 f each side fof the housing. Each transmitting shank portions ont :thesaid transmitting mem-Y bers being insertedthroujg,fh the slotsl' inthe v housing A"v from opposite/directions,'and feX-L tendinto the bore [5 7 'in :tj l i'e roller;v the shanvks Y 'ngo'f sn'ch that the Ysame; lia-ve ltheir f l' niner v'ends inabntment when t hef fs`h onfld'ers` 160'*fermectbyahe,headedfportiensfe"-ofiftie transinittingfmembers arefin abutment. fw

innmbe'r, one of WhichisV arrangedV lupon Y' s 120i member .l is provided fwith a/,headedfp'ortion jV f 58 f Ia f cylindrical`- shank i portion Y59, the

the side walls of the housing. Each ofthe each spring'being secured to a lug'62 projecting laterally from the side wall of the housing, and the opposite end. of the spring is secured to a similar lug 63' projectingfrom the side wall of thehousing adjacent the top edge thereof.

In operation upon movement lof the antifriction element B to either side of central position the transmitting members C-C will be carried therewith, resulting in flexing the springs D--D intermediate their ends, and when the load is released from said antifriction element, the same will be returned to central position by reason of the force exerted upon the transmitting elements by reactive force of said springs.

While I have herein shown and described what I now consider the preferred manner of carrying out the invention, the same is merely illustrative, and I contemplate alll changes and modifications that come within the scope of the claims appended hereto.

I claim: i

1. In an anti-friction bearing, the combination with a retainer provided withhorizontally extending guideways; and anti-friction means adapted to move to either side of central position with respect to said retainer; transmitting members detachably associated with said anti-frictionl means, said transmitting members extending through said guideways; and vertically arranged springs extending through said transmitting members to maintain the same in cooperative relation with said anti-friction means, said vsprings being adapted to be flexed intermediate their ends upon movement of said antifriction means to either side of central position, whereby said antifriction. means are returned to central position When free from load.

2. In an anti-friction bearing, the combination with a retainer having guideways in its side Walls and provided With a bearingv surface; a plurality of anti-friction'elements adapted to move back and forth on said bearing surfaces; transmitting members detachably connected to said anti-friction elements so as to space the same, said transmitting members operating in said guideways and extending outwardly therethrough; and vertically arranged springs at each side of said housing operatively connected with said transmitting members and adapted to be flexed intermediate their ends by said members upon movement ofv said anti-friction means to either side ofl central position.

3. In an anti-friction bearing, the combination with a retainer provided withside and end Walls, one of said side `Walls having a horizontally extending guide slot; anti'- friction `means adapted to moveto either `side of central position with respect to 'said retainer, said anti-friction means including an element provided with an axially disposed,

opening, 'a vif'erticall disposed.' spring arranged at one side o said bearing and. having its opposite ends secured to said retainer; and a transmitting memberv insertable through said guide slot into the axialopenings in said element, said transmitting member engaging said springand being maintained in position thereby,said transmitting element being adapted to flex said spring intermediate its ends upon movement of said anti-friction means to either side of central position. v

4. In an anti-friction bearing,tlie combination With a retainer having side and end walls and` being-provided with longitudinally arranged -concaved bearing surfaces, yand with horizontally arranged guideways'invits side Walls; anti-friction elements arranged to move back and forth upon said bearing surfaces; a cap providedl with convexbearing surfaces corresponding substantially incurvature with the bearingsurfaces of said lretainer; transmitting members connectedwith said anti-friction elements and -operatively vmounted'in the guideways of said side Walls; vertically disposed springs at opposite sidesv of said housing and connected to saidtransmitting-members Whereby'movenient of said aiitiffriction elements to veither Side of central position willeffect flexingof said springs intermediate theirends so thatreactive force of-saidsprings will return said anti-friction velements to central position.

5.- In a side bearing of scribed, the combination ywith' a retainer secured to .the truck bolster of a railwaycar, V.said retainer having means providing a concave bearing surface; of anti-friction means movable to and fro upon said bearing'surface; a cap for said retainer having aconvex bearing surface corresponding.substantially he f character dein curvature with 'the concave bearing sur- -face of said retainer, said convex bearingsurfacev bearing upon said anti-friction' means to permit movementof said capy on said antifriction meansY and relatively to the latter and said retainer, said anti-friction ymeans and'said concavey and convex bearing surfaces being so proportioned as to maintain theV cap at the same level during itsvmove'- ments with-respect to said retainer; meansf connectingl said cap with said retainer to permit operative movements lof the cap; and

yieldable means co-operating with they ysaid Vanti-friction means to directly return they same :andjtherefore tlieraplindirectly to andv niaintain'rthe. same ineentral posi-tion 'with' vreference toV said fretainerjwhen :freejrornf lc' ad.f.V f- Y* l, f V V6.1.I1i'a sidebearing ofthey charaotervdef scribed;thefooinbination with a retainer se-` v kcured Ytothe truck bolster yof 'a railway scar, l said retainer having iineans'providing a vCon-[- t fr `caire bearingsiirface of anti-friction means Y "10" movable vrto :and-fro; upon saidjbearing'sur'- jface-acap for said retainer'liaving a convexr j Q bearing `surface Corresponding `siibstafntiallyYV "l in1 vcurvature with the eonoaye bearing sur- Y, y l Vfaeewof said'lretainer,"said convvexV bearing yY T15 surfaeebearin'g'upon said-antisifriction means to permit moveinentof. said nap `onsaid antifriction means andrelativelyjtothelatter Vand, said retainer, said' anti-friction f rneans v Y and saidfeoncave and'eonvex bearingsi'irfaees respect to said retainer; meansl connecting said cap Wlth said retainerkto permitoper'abeing soiproportioned aste maintain Vthe cap jatrth'e sarneglevel during its movements with v tive Ymovements of Vthe-Cap;fand lyieldable i i ineansrcofoperating Wthfsaid anti-frictionV means .to return the saine toand maintainVv resist disengag,emeritj/ofy said transin ittingY` Y elementy from-the anti-friction element7 there-l Y vby holding the forme-r inf i `operative YVengage- 'd toretfiiin said anti-frictionelernent sto-rior?.

mal upon removal oit-the aCtuating-oree." f g In Witness that I olairn thejxo-regoing; IV

have hereunto subscribed day ofFebruary',lgli926V Y v VILLlAM a y the'samejrinvcentral position Withrrre-ferenee j 1 ltojs'aidA retainer Whenfreejfrom load', said y anti-friction rneans being provided With teeth 93.0 vengage'able with teetlion the eonVeXb'earing e Vsurface'ofsaid cap."` 'w I E731' ais'de ybearing fof- `the" 'character 1 dei V'seribedfthe kcombination' Wit-lia retainer "sek y f Y cured-t0 the truek bolster oiaf railway Car,KV

i i 'f35 said 'retainer having rmeans providing' -aeoni 'i f-Inovabletonandefro uponsaid bearing sui'- Ycave bearingsurface'fyof Nanti'-ii'riction:irieans Y .fi'faeeja'eaprlforisaid retainer havinga'onvex I d bearing surface corresponding substantially *vio f said; oonea-Vejandeonvex bearing siirfa'ces vinaciirvature fwitlitlef concave bearing siir-` y Y aceof-said'retainenvsaidconvex bearingsur-y VV:tace bearing .upon saidantifrietionfrneans n to pernit niovementofsaid cap on saiilanti-Y friction imeans{and/relatively.to fthe latterand said retainerfsaid .antifrieti'o'n :means 'and e :being so' proportioned as to maintain the CapV Y i Eat-the same level duri'ngfits movementswith .g respect Vvto jsaidf-retainer; means Connecting' said v.capwith said .retainer Vtokpermit opere e ative'fmovenients of the Jeap; elongatedspring f Q fmeans,liavinggboth ofritsendseonnected gtof;V -saidlretainerg'transinitting elementsfcoiinecti Y able with saidspringnieans interinedi-atejthe l `'-ai 1ti.iirietion means moves Yto 'either sidefof f edrwith. said antiffriotion' Imeans andVY engage.-

fcentral-positio'n; andinterlengagingteeth'on i! 5 Y :said vanti-friction.means, and the icfonvex gsiir,

face'ofsaid nap; kWherebfgyfthe postionot saidv f d o il g @cap iszcontrolled bythe positionjof saidantif-y vfl LF-8. Inanfanti-rietionfbearingthe nation .Withifav retaining inernber-;;of van anti- '1 y J'fI'ieti'on-'felernentiarrangedrto-imove'baCk and 

